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livekit/README.md
2021-08-30 22:56:15 -07:00

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# LiveKit - Open source, distributed video/audio rooms over WebRTC
LiveKit is an open source project that provides scalable, multi-user conferencing over WebRTC. It's designed to give you everything you need to build real time video/audio capabilities in your applications.
## Features
- Horizontally scalable WebRTC Selective Forwarding Unit (SFU)
- Modern, full-featured [client SDKs](https://docs.livekit.io/references/client-sdks/) for JS, iOS, Android, and Flutter
- Built for production - JWT authentication and [server APIs](https://docs.livekit.io/guides/server-api)
- Robust networking & connectivity, over UDP & TCP
- Easy to deploy - pure Go & single binary
- Advanced features - speaker detection, simulcast, selective subscription, moderation APIs, and webhooks.
## Documentation & Guides
Docs & Guides at: https://docs.livekit.io
## Try it live
Head to [our playground](https://livekit.io/playground) and give it a spin. Build a Zoom-like conferencing app in under 100 lines of code!
## SDKs & Tools
Client SDKs:
- [Javascript](https://github.com/livekit/client-sdk-js) ([docs](https://docs.livekit.io/client-sdk-js/))
- [React](https://github.com/livekit/livekit-react)
- [iOS - Swift](https://github.com/livekit/client-sdk-ios) ([docs](https://docs.livekit.io/client-sdk-ios/))
- [Android - Kotlin](https://github.com/livekit/client-sdk-android) ([docs](https://docs.livekit.io/client-sdk-android/))
- [Flutter](https://github.com/livekit/client-sdk-flutter) ([docs](https://docs.livekit.io/client-sdk-flutter/))
Server SDKs:
- [Javascript](https://github.com/livekit/server-sdk-js) ([docs](https://docs.livekit.io/server-sdk-js/))
- [Go](https://github.com/livekit/server-sdk-go) ([docs](https://pkg.go.dev/github.com/livekit/server-sdk-go))
Tools:
- [livekit-cli](https://github.com/livekit/livekit-cli)
- [chrometester](https://github.com/livekit/chrometester)
## Installing
### From source
Pre-requisites:
* Go 1.15+ is installed
* GOPATH/bin is in your PATH
Then run
```shell
git clone https://github.com/livekit/livekit-server
cd livekit-server
./bootstrap.sh
mage
```
### Docker
LiveKit is published to Docker Hub under [livekit/livekit-server](https://hub.docker.com/r/livekit/livekit-server)
## Running
### Creating API keys
LiveKit utilizes JWT based access tokens for authentication to all of its APIs.
Because of this, the server needs a list of valid API keys and secrets to validate the provided tokens. For more, see [Access Tokens guide](https://docs.livekit.io/guides/access-tokens).
Generate API key/secret pairs with:
```shell
./bin/livekit-server generate-keys
```
or
```shell
docker run --rm livekit/livekit-server generate-keys
```
Store the generate keys in a YAML file like:
```yaml
APIwLeah7g4fuLYDYAJeaKsSE: 8nTlwISkb-63DPP7OH4e.nw.J44JjicvZDiz8J59EoQ+
```
### Starting the server
In development mode, LiveKit has no external dependencies. You can start LiveKit by passing it the keys it should use in `LIVEKIT_KEYS`.
LiveKit could also use a [config file](config-sample.yaml) or config environment variable `LIVEKIT_CONFIG`
```shell
LIVEKIT_KEYS="<key>: <secret>" ./bin/livekit-server --dev
```
or
```shell
docker run --rm \
-p 7880:7880 \
-p 7881:7881 \
-p 7882:7882/udp \
-e LIVEKIT_KEYS="<key>: <secret>" \
livekit/livekit-server \
--dev \
--node-ip=<machine-ip>
```
When running with docker, `--node-ip` needs to be set to your machine's local IP address.
The `--dev` flag turns on log verbosity to make it easier for local debugging/development
### Creating a JWT token
To create a join token for clients, livekit-server provides a convenient subcommand to create a **development** token.
This token has an expiration of a month, which is useful for development & testing, but not appropriate for production use.
```shell
./bin/livekit-server --key-file <path/to/keyfile> create-join-token --room "myroom" --identity "myidentity"
```
### Sample client
To test your server, you can use our [example web client](https://example.livekit.io/)
(built with our [React component](https://github.com/livekit/livekit-react))
Enter generated access token and you are connected to a room!
## Deploying for production
LiveKit is deployable to any environment that supports docker, including Kubernetes and Amazon ECS.
See deployment docs at https://docs.livekit.io/guides/deploy
## Contributing
We welcome your contributions to make LiveKit better! Please join us [on Slack](https://join.slack.com/t/livekit-users/shared_invite/zt-rrdy5abr-5pZ1wW8pXEkiQxBzFiXPUg) to discuss your ideas and/or submit PRs.
## License
LiveKit server is licensed under Apache License v2.0.